Powder coating compositions containing glycidyl ester copolymers

Details Powder coating compositions containing glycidyl ester copolymers Powder coating compositions containing glycidyl ester copolymers

1973-12-18

1978-05-23

Pertilla, Theodore E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 306R, 260 318E, 260 37EP, 260 784EP, 260830R, 260830TW, 260835, 260837R, 260DIG17, 427 27, 428417, 428418, C08L 6300

Patent

active

040910490

ABSTRACT:
Powder coating compositions are disclosed which, exclusive of pigments and other nonreactive components, comprise a coreactive mixture of: (A) a copolymer of between about 8 and about 30 weight percent of a glycidyl ester of a monoethylenically unsaturated acid and between about 92 and about 70 weight percent of other monoethylenically unsaturated monomers, said copolymer having a glass transition temperature in the range of 40.degree. C to 90.degree. C and a number average molecular weight (M.sub.n) in the range of about 2500 to about 8500; and (B) a carboxyl terminated crosslinking agent in the amount of 0.8 to 1.2 carboxyl groups for each epoxy group in the copolymer.

REFERENCES:
patent: 2857354 (1958-10-01), Fang
patent: 3058947 (1962-10-01), Fryling
patent: 3070564 (1962-12-01), Roeser
patent: 3222419 (1965-12-01), Jubilee
patent: 3297621 (1967-01-01), Taft
patent: 3514419 (1970-05-01), Darlow
patent: 3541055 (1970-11-01), Malamet
patent: 3730930 (1973-05-01), Labana
patent: 3752870 (1973-08-01), Labana
patent: 3781380 (1973-12-01), Labana
patent: 3787521 (1974-01-01), Labana
patent: 3808114 (1974-04-01), Tsuchihara
Detroit Society for Paint Technology: Journal of Paint Technology, vol. 44, No. 565, Feb. 1972, pp. 30-37 .

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